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    This record describes the datasets collected from the development of a Gene Tagging Tool for the Regional Tuna Tagging Programme (RTTP) which is managed under the auspices of the Indian Ocean Tuna Commission and genetic tagging studies. The aim is to quantify population structures and migratory dynamics which are currently poorly understood. The use of SNP markers lend themselves easily to routine and inexpensive ($10-$20 per fish) screening methodologies. The stock assessment advice is used to assist in the conservation and optimal economic use of this resource. This record describes the datasets collected or resulting from the outcome of the programme. Acronyms: ANSFAS: -Australia New Zealand Food Authority SNPs: -Single Nucleotide Polymorphisms IOTC: -Indian Ocean Tuna Commission RTTP: -Regional Tuna Tagging Programme FRDC: -Fisheries Research and Development Corporation

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    This record describes the datasets obtained on Courageous Cruise 050. The data were obtained from the Australian North West shelf in May and June 1979. Trawls for demersal fish were made and the species caught included Lutjanus and Nemipterus spp. and the brush tooth lizard fish (Saurida undosquamis). Other species found further to the north included Saurida micropectoralis, Gassa miuta and leiognathus fasciatus. Pelagic fish caught included Pellona ditchella, northern bluefin tuna (Thunnus tonggol), mackerel tuna (Euthynnus affinis), and skipjack tuna (Katsuwonus pelamis).(derived from the cruise report) - Biological Field Data Sheets recorded during this voyage have been scanned to PDF, and are available (to CSIRO Staff) on-line. See the details link under "Stored Media List" (below).

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    This record describes the datasets obtained on Courageous Cruise 047. The data were obtained from the Great Australian Bight in March and April 1979. Data were obtained from acoustic and trawl surveys of pelagic and demersal fish. New species distributions were obtained for fish including the footballer sweep (Neatypus obliquus), stargazer (Pleuroscopus psuedodorsalis), and various myctophids. Four species from trolling included Bonito (Sarda orientalis), Southern bluefin tuna (Thunnus maccoyi), Albacore (Thunnus alalunga) and Skipjack tuna (Katsuwonus pelamis). Length, numbers, weight and target signal strength were determined. Selected species of sponges were kept for taxonomic studies. Plankton observations were made in connection with studies of the distribution of pilchard (Sardinops neopilchardus). Additional information regarding this dataset is contained in the cruise summary for this voyage.(derived from the cruise report) - Biological Field Data Sheets recorded during this voyage have been scanned to PDF, and are available (to CSIRO Staff) on-line. See the details link under "Stored Media List" (below).

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    This record describes the datasets obtained on Courageous Cruise 039. The data were obtained from the NSW coast and Tasman Sea in October 1978. Data were obtained on distribution (sightings and sonar) of yellowfin tuna (Thunnus albacares), skipjack tuna (Katsuwonus pelamis) and southern bluefin tuna (Thunnus maccoyii). Associated data collected included seabird species composition and spatial distribution, plankton samples, XBT, zooplankton and hydrological samples, and water colour. Additional information regarding this dataset is contained in the cruise summary for this voyage.(derived from the cruise report) - Biological Field Data Sheets recorded during this voyage have been scanned to PDF, and are available (to CSIRO Staff) on-line. See the details link under "Stored Media List" (below).

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    This record describes the datasets obtained on Courageous Cruise 035. The data were obtained from the Australian NW Shelf (Port Hedland and York Sound areas) in May and June 1978. Data were obtained from acoustic and trawl surveys of pelagic and demersal fish. Predominant species included goatfish (Mullidae), threadfin bream (Nemipteridae), lizard fish (Synodontidae), scad and trevally (Carangidae), pufferfish (Tetradontidae), bigeye (Priacanthidae), emperor (Lethrinidae) and sea perch (Lutjanidae). Five species of Scombrid included leaping bonito (Cybiosarda elegans), frigate mackerel (Auxis thazard), eastern little tuna (Euthynnus affinis), big-eye tuna (Thunnus obesus) and Indian mackerel (Rastrelliger kanagurta). Several individual tuna were trolled, including skipjack tuna (Katsuwonus pelamis) and northern bluefin tuna (Thunnus thynnus). Length, numbers, weight and target signal strength were determined. Two XBT, nutrient and plankton sampling transects were also completed. Additional information regarding this dataset is contained in the cruise summary for this voyage.(derived from the cruise report) - Biological Field Data Sheets recorded during this voyage have been scanned to PDF, and are available (to CSIRO Staff) on-line. See the details link under "Stored Media List" (below).